Molecules

Sulfated zirconia-catalyzed synthesis of 3, 4-dihydropyrimidin-2 (1H)-ones (DHPMs) under solventless conditions: Competitive multicomponent Biginelli vs. …

D Angeles-Beltrán, L Lomas-Romero, VH Lara-Corona…

文献索引：Angeles-Beltran, Deyanira; Lomas-Romero, Leticia; Lara-Corona, Victor H.; Gonzalez-Zamora, Eduardo; Negron-Silva, Guillermo Molecules, 2006 , vol. 11, # 10 p. 731 - 738

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被引用次数: 28

摘要

Abstract: The catalytic ability of ZrO 2/SO 4 2-to promote solventless three-component condensation reactions of a diversity of aromatic aldehydes, urea or thoiurea and ethyl acetoacetate was studied. Products resulting from Hantzsch and/or Biginelli multi- component reactions are obtained in the presence of solid acid catalysts using the same reactants but different temperature conditions. The sulfated zirconia catalyst can be ...